A Compact 130-GHz CMOS OOK-Doubler With Embedded 10-Gb/s Modulator and Integrated Glass Antenna for Scalable Array Systems and Efficient Short-Range Communication
Shah Zaib Aslam, Hao Yan, Meysam Asghari, Haoling Li, Najme Ebrahimi
Abstract
This letter presents a <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$D$</tex-math> </inline-formula> -band on–off keying (OOK)-doubler that uses a balanced push–push design with an integrated switch at its common node (CN) for second harmonic modulation. The input impedance of the proposed modulator remains almost constant with less than 1% mismatch during the switching states of direct modulation, making it best candidate for scalable switched array with fast settling time. The design of the circuit is realized using 65-nm CMOS TSMC process, featuring a compact size. It is heterogeneously combined with a glass antenna that employs General Electric’s technology, achieving a gain of 6 dBi. The integrated OOK-doubler and glass antenna achieves up to 10-Gb/s data rate over 7 cm, with BER less than 10 <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$^{-6}$</tex-math> </inline-formula> . The chip consumes 11–14-mW dc power with a saturated power of <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$-$</tex-math> </inline-formula> 2 dBm.